1. Institute
of Molecular Medicine and Cell Research, University of Freiburg, 79104 Freiburg, Germany
2. Department
of Dermatology, University Medical Center Freiburg, 79104 Freiburg, Germany
3. Department
of Pathology and Laboratory Medicine and Department of Chemistry,
Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
4. BIOSS
Centre for Biological Signaling Studies, University of Freiburg, D-79104 Freiburg, Germany
5. German Cancer
Consortium
(DKTK) and German Cancer Research Center (DKFZ), 69121 Heidelberg, Germany